Apparatus for cleaning and polishing metal-coated plates



H. S. THOMAS, W. R. DAVIES AND R. B. THOMAS.

N. c. s. THOMAS. II. R. w. ANDERSON ANO c. BATIIuNsI, ExEcuToRs or R. THOMAS, DEC'O. APPARATUS FOR CLEANING AND POLTSHING METAL COATED PLATES.

APPLICATION FILED MAY I3, |918.

71,384,647. Patented July 12, 1921.

f'by. l

UNITED STATES PATENT OFFICE.

HUBERT SPENCE THOMAS, OF LLANDAFF, AND WILLIAM ROBERT DAVIES, OF WHIT- CHUROH, NEAR CARDIFF, WALES, AND RICHARD BEAUMONT THOMAS, DECEASED, LATE OF ENGLEFIELD GREEN, ENGLAND, BY NORA CONSTANCE BEAUMONT THOMAS, OF ENGLEFIELD GREEN, ENGLAND, HENRY ROBERT WILLIAM: ANDER-l SON, OF LONDON, ENGLAND, AND CHARLES BATHURST, OF LYDNEY, EXECUTORS OF SAID RICHARD BEAUMONT THOMAS.

ENGLAND,

APPARATUS FOR CLEANING AND POLISHING METAL-COATED PLATES.

Specification of Letters Patent.

Patented July 12, 1921.

Original application led. August 6, 1917, Serial TNO. 184,768. Divided and this application filed May 13,

T 0 all 'whom t may concern:

Be it known that HUBERT STENOE THOMAS, a subject of the King of Great Britain, residing at Llandaff, Glamorganshire, Wales, and WILLIAM ROBERT DAvIEs, a subject of the King` of Great Britain, residing at Whitchurch, near Cardiff, Glamorganshire, Wales, and RICHARD BEAUMONT THOMAS, deceased, formerly a subject of the King of Great Britain and lately residing at Englefield Green, Surrey, England, (NORA CoNsTANoE BEAUMONT THOMAS and HENRY ROBERT VILLIAM ANDERSON and Sir CHARLES BATH- URST, subjects of the King of Great Britain, residing, respectively, at The Glade, Englefield Green, Surrey, England; No. 80 Bedcliffe Gardens, London, England, and Lydney Park, Lydney, Gloucestershire, England, being the executors of RICHARD BEAUMONT THOMAS,) have invented certainnew and useful Improvements in Apparatus for Cleaning Polishing` Metal-Coated Plates, of which the following is a specification.

Our invention relates to machinery for the manufacture of tin-plates and sheets which have a width proper to admit of the feeding Simultaneously of a series of single plates or sheets side by side or abreast into the machine and the passage of the said plates or Sheets therethrough side by Side or abreast, a machine of the kind referred to being described and represented in the specification of our pending U. S. atent application Serial No. 184,768, filed August 6th, 1917, of which the present application is a division, and our invention consists of the improvements in or additions hereinafter described to machinery or apparatus of the kind referred to, with the object of dusting and polishing more efficiently the plates or sheets emerging from the machine.

In order that our invention may be the better understood we remark that after the tinning of the metal plates or sheets they are passed through the branning apparatus or a pliance to free the-surfaces of the said p ates or sheets of the grease left thereon by their passage through the grease pot, and subsequently they are passed through clean1 Serial No. 234,303.

ing or dusting rolls to remove the dust or bran adhering to the surfaces of the plates or sheets.

According to our invention we arrange at the back of the ordinary cleaning or dusting rolls an endless traveling conveyer for receiving the plates or sheets from the said rolls the speed of the rolls and conveyer being so regulated by the gearing that a series of plates or sheets simultaneously delivered on to the conveyer are removed clear of the path of the plates or sheets passing through the cleaning or dusting machine before the next series of platos or sheets are delivered on to the conveyer.

The said arrangement lends itself conveniently to the provision or combination with the machine of an additional set or series (or more than one additional set) of cleaning or dusting rolls arranged prefer'- ably at right angles to the first set or ordinary cleaning or dusting rolls so as thereby tc effect a cross dusting or cleaning of the tinned plates or sheets passing through the machine.

We have found that by effecting the cross dusting or cleaning described of the plates or sheets the surfaces of the tinned plates or sheets are rendered brighter or more highly polished than is usual.

The plates or sheets are delivered by the second series of dusting rolls, where two series are employed, on to a table in a single pile the plates or sheets being then ready to be boXed for transit.

We will further described the said invention in connection with the accompanying drawings.

Figure 1 represents in longitudinal section a dusting or cleaning machine of a tinning apparatus provided with two sets or series of dusting rolls in accordance with our invention.

Fig. 2 is a plan of the machine and Fig. 3 is a vertical section taken in the plane indicated by the dotted line 3-3 Fig. 1 looking in the Idirection of the arrow in the said F ig. 1.

v Figs. 4 and A5 represent lin longitudinal sec? tion and plan respectively a portion of thel endless conveyer drawn to a larger scale than in Figs. 1, 2 and 3, the arrow in Fig. 4 indieating the direction of motion of the conveyer.V

The same letters and numeralsv of reference indicate the same parts in the several figures of the drawings.

e, e are the pairs of ordinary dusting rolls constituting the first set or series, which are arranged as is usual at the rear of the branning appliance of the tinning machine, y vbeing a portion of oner of the troughs of the said branning appliance.

At the rear of the dusting rolls e is an endless traveling conveyer 4 of a length equal to or greater than the length of the dusting rolls e, or equal to or greater than the Width of the machine to which the invention is applied. 5, 5 are guards to prevent the plates or sheets Which are delivered on to the conveyer 4 from passing over the edges of the same. The conveyer 4 is preferably made of a series of overlapping plates as is best seen in Fig. 4 the said plates being` secured by rivets to ear pieces projecting from the outer sides of or connected to certain of the links of the endless chains of the conveyer as will be best understood by reference to Fig. 5.

At the end of the conveyer 4 toward Which the plates or sheets are carried by the motion of the same are tWo pairs of dusting rolls 6 by the vaction of Which the plates or sheets are dusted or cleaned in a direction at right angles to that in which the said plates or sheets are dusted by the pairs of rolls The rolls of the first series are of the ordinary kind that is to say one roll of each pair is preferably a rubber covered roll and the other i'oll is covered with sheep skins.

The lower roll only of the first pair of rolls of the second series of polishing or dusting rolls 6 is covered with rubber or the like, the upper roll of the said first pair of rolls and both rolls of the second or succeeding pairs being covered with sheep skins or the like.

The delivery of a series of plates or sheets simultaneously into the tinning machine with which the cleaning or polishing machine hereinbeforc described is combined and the speed of the rolls e and endless conveyer 4 With respect to the speed of the sccond series'A of dusting or polishing rolls 6 are so regulated that the removal of two or more'plates'or sheets simultaneously deliver-ed on to the conveyer 4 out of the path of the succeeding plates or sheets before the latter leave the first series of dusting rolls e is insured.

By the lcross dusting action effected by the vadditional or second series of dusting rolls 6 the streaky surfaces or imperfect polish Which generally results from the action of a single'series of dusting rolls is Wholly or in great part obviated and plates or sheets of an improved finish or'high polish are obtained. -Further, the' said plates or sheets which ordinarily are deposited in a series of piles'at the rear of the single set of dusting rolls are by the improvements constituting our invention collected into a lsingle pile on a table or re-' stitutes for rubber covered rolls and sheepA skin rolls.

We claim In a tinning machine or apparatus, a dusting and cleaning appliance adapted to be placed at the rear end of the machine, said appliance being of a Width proper to receive and treat a series of plates or sheets abreast or side-by-side, an endless traveling conveyer at the rear of the said dusting and cleaning appliance, said conveyer being of a length proper to receive the series of plates or sheets as they emerge from and fall clear of the rolls of the Wide dusting and cleaning appliance, means for moving the traveling conveyer at such a rate of speed that the series of plates or sheets simultaneously received bythe conveyer is removed from the path of the plates or sheets which will next be delivered thereon and is carried toa second or additional dusting and cleaning` appliance in a single series, the rolls of the second or additional dusting and cleaning appliance being arranged at such an angle to the wide rolls of the first mentioned dusting and cleaning appliance that thel plates or sheets are acted upon by the rolls of the second or supplementary dusting and cleaningappliance in a direction different from that effected by the rolls of the first men- HUBERTASPENCE THOMAS. WILLIAM ROBERT DAVIES.

NORA CONSTANCE BEAUMONT THOMAS, HENRY ROBERT WILLIAM ANDERSON, CHARLES BATHURST,

Ii'accutoie of Richard Beaumont lhomas;r deceased. 

